New PeerConnection handler in Chrome to support latest PeerConnection draft

content/renderer/media/peer_connection_handler_base.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/peer_connection_handler_base.h"
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/media_stream_extra_data.h"
@@ skipping 21 matching lines @@
 
 void PeerConnectionHandlerBase::AddStream(
     const WebKit::WebMediaStreamDescriptor& stream) {
   webrtc::LocalMediaStreamInterface* native_stream =
       GetLocalNativeMediaStream(stream);
   if (native_stream)
     native_peer_connection_->AddStream(native_stream);
   DCHECK(native_stream);
 }
 
+bool PeerConnectionHandlerBase::AddStream(
+    const WebKit::WebMediaStreamDescriptor& stream,
+    const webrtc::MediaConstraintsInterface* constraints) {
+  webrtc::LocalMediaStreamInterface* native_stream =
+      GetLocalNativeMediaStream(stream);
+  if (!native_stream)
+    return false;
+  return native_peer_connection_->AddStream(native_stream, constraints);
+}
+
 void PeerConnectionHandlerBase::RemoveStream(
     const WebKit::WebMediaStreamDescriptor& stream) {
   webrtc::LocalMediaStreamInterface* native_stream =
       GetLocalNativeMediaStream(stream);
   if (native_stream)
     native_peer_connection_->RemoveStream(native_stream);
   DCHECK(native_stream);
 }
 
 WebKit::WebMediaStreamDescriptor
@@ skipping 25 matching lines @@
         UTF8ToUTF16(video_track->label()),
         WebKit::WebMediaStreamSource::TypeVideo,
         UTF8ToUTF16(video_track->label()));
   }
   WebKit::WebMediaStreamDescriptor descriptor;
   descriptor.initialize(UTF8ToUTF16(stream->label()),
                         audio_source_vector, video_source_vector);
   descriptor.setExtraData(new MediaStreamExtraData(stream));
   return descriptor;
 }